Security Incidents mailing list archives

Re: another rootkit - one more file (fwd)


From: root <root () lucipher ath cx>
Date: Mon, 4 Jun 2001 23:31:39 -0400 (EDT)

On Mon, 4 Jun 2001, Michal Zalewski wrote:

 Hello,

 that is a rootkit writen in portuguese -> brasilian, and most of
 the brasil ip's begin with 200. , that is quite normal, since brasil
 doesnt have a good lesgilation.


Alvin told me it might be good to forward it to INCIDENTS. There are my
comments on the binaries of this rootkit I got from him - you might want
to check if you have one already ;-):

- The rootkit itself is called 'ManiaC r00tkit' (how pathetic). We
  were not able to find it anywhere on the net (searching for filenames
  and such), so I presume it is pretty new,

- It consists of a sniffer, few trivial backdoors, DoS tools, bnc
  IRC bouncer, setuid shell and so on. It uses Ava/Adore kernel module to
  hide itself, and replaces few binaries, modifies one rc script - it
  is not too advanced,

- Rootkit installation script:

  echo "Copiando os arquivos necess.rios."

  This sounds like Portuguese or so, which probably tells us about
  its origins.

- It removes few patterns from logfiles. That would be: 200.195.86.*,
  200.248.162.*, 200.195.121.*, 200.243.17.*, netdados.com.br,
  usinet.com.br - I presume these are networks attacker used for
  defacements (how smart to put them in the script in this form!),

- It sends information about machine to tuiqoitu039t09q3 () bigfoot com,
  bnadfjg9023 () hotmail com, t391u9t0qit () end-war com, mki62969o () yahoo com.
  One of these mailboxes is still working (bigfoot.com, others are
  provided as a decay or so),

- pt07 and mailrc binaries are backdoors. Listening on 56789/tcp, with
  password "include.h", it hides under the name of "klogd":

  Trying 0.0.0.0...
  Connected to 0.
  Escape character is '^]'.
  include.h

  Bem Vindo MaNiAc 31337 a sua makina!
  Voce Tem o controle! =)

  bash: no job control in this shell
  bash-2.01#

  Once again, I haven't seen any mention of this backdoor port anywhere.

Hope that helps,


 -- Gonçalo Gomes


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